Term ends Feb 20, 2029 · High confidence
20-year base term ends Dec 3, 2028
Held by Sanbio, Inc.
Filed Jan 12, 2018 as application 15/870,701 · Granted May 19, 2020
Base term plus 104 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2008
2029
Clock starts
Dec 3, 2008
Dec 3, 2008
Term ends
Feb 20, 2029
Feb 20, 2029
Granted
May 19, 2020
May 19, 2020
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
104
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,471,102.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
5
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 104 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 1 of 2 maintenance fees is paid so far. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Dec 3, 2008, when application PCT/US2008/013297, the earliest non-provisional in its chain, was filed (this one was filed Jan 12, 2018) | Dec 3, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +104 days, USPTO patent term adjustment record | Mar 17, 2029 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,471,102) | capped to Feb 20, 2029 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 20, 2029 | High confidence |
This family
| Application PCT/US2008/013297 | PCT application no patent term | no patent term |
| US 10,702,554 | In force Sep 2033 | Sep 2033 |
| Application 14/465,344 | Abandoned not computed | not computed |
| US 10,653,724 | this patent Feb 2029 | Feb 2029 |
| US 10,471,102 | In force Feb 2029 | Feb 2029 |
The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Jan 12, 2018 Reel 44614, frame 446 | Aizman, Irina | Sanbio, Inc. | Assignment of Assignor's Interest |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Feb 2029
Term ends Feb 20, 2029. Maintenance fees still fall due before then
Note
The 104 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,471,102.
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2020 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.